submodule: bump openthread from `8841bdd` to `097aa4f` (#126)
submodule: bump openthread from `8841bdd` to `097aa4f` (#126)

Bumps [openthread](https://github.com/openthread/openthread) from `8841bdd` to `097aa4f`.
- [Commits](https://github.com/openthread/openthread/compare/8841bdd38d0b54a9cb0c2170d154be8b7e4dcbb1...097aa4f65d3b6c1f8a4148b24885472e74acbecb)

---
updated-dependencies:
- dependency-name: openthread
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>

Co-authored-by: dependabot[bot] <1c358da00a777d4e9898c1280ab801e2df165188@users.noreply.github.com>
openthread/ot-samr21,openthread/ot-samr21